458 Mr. J. S. Baly on the Phytophaga. 



tibia? insertis, articulo basali duobus sequentibus conjunctim paullolon- 

 giore ; unguieulis appendiculatis. 

 Type, Acrocrypta Mouhuti, Baly. 



Acrocrypta must stand close to Acroleuca, Chevr., which latter 

 genus contains many species, nearly all undescribed, from the East ; 

 it may be separated by the shorter, more robust, more compressed, 

 and much more dilated antennae, and also by the almost globular 

 maxillary palpi, with their extremely short and nearly hidden ter- 

 minal joint. 



Acrocrypta Moiihoti. 



A. ovato-rotundata, subglobosa, fulva, nitida; antennis (basi excepta), 

 ore, oculis pedibusque nigris. — Long. 2± lin. 



Hub. Cambogia. Collected by M. Mouhot. 



Ovate-rotundate, subglobose, shining fulvous; antennae (their base 

 excepted), eyes, mouth, and legs black. Head nearly buried in the 

 thorax, face subrotundate ; epistome slightly thickened, separated from 

 the face by an indistinct angular groove, at the apex of which a trans- 

 verse depression runs across between the eyes ; labrum black ; antenna? 

 scarcely longer than half the body, first two joints flavous, pitchy above, 

 terminal joint with its extreme' apex obscure white. Thorax more 

 than twice as broad as long ; apex broadly but slightly concave, sides 

 narrowly margined, rounded behind, obliquely narrowed in front, ante- 

 terior angles thickened, slightly produced, broadly obtuse, posterior 

 subacute ; basal margin oblique on either side, rounded in the middle ; 

 disk finely but not very closely punctured. Elytra broadly ovate, wider 

 than the thorax, shoulders rounded, surface distinctly but not coarsely 

 punctured. 



Acrocrypta dimidiata. (Plate XXI. fig. 5.) 



A. ovato-rotundata, subglobosa, nitida, nigra, abdomine elytrisque (horum 



basi praetermissa) fidvis. — Long. 2^ lin. 

 ILib. Cambogia. Collected by M. Mouhot. 



Very similar to the preceding, rather narrower and less rotundate, 

 differing however principally in colour. 



Genus Camosna. (Details, Plate XXI. fig. 7.) 

 Corpus oblongo-ovatum, modice convexum. Caput exsertum, facie trigo- 

 nata ; antennis modice robustis, subfiliformibus, basi et apice attenuatis, 

 articulis secundo et tertio brevibus, fere asqualibus ; oculis prominulis, 

 ovatis, intus vix sinuatis. TJiorax transversus, ante basin transversim 

 sulcatus, sulco utrinque intra latus retrorsum ad basin curvato. 

 Elytra ovata, basi truncata, anguste marginata, confuse punctato- 

 striata. Pedes simplices ; femoribus posticis incrassatis, subtus canali- 



